OkHttpClient throws exception after upgrading to OkHttp3

Question

I\'m using following lines of code to add a default header to all of my requests sent using Retrofit2:

private static OkHttpClient defaultHttpClient = new Ok         


        

Answer 1

compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile "com.squareup.retrofit2:converter-gson:2.1.0"
compile "com.squareup.retrofit2:adapter-rxjava:2.1.0"
compile 'com.squareup.okhttp3:logging-interceptor:3.4.0'

You should probably use these versions. Just put them, sync your gradle, delete all imports, and try again.

import okhttp3.Interceptor;

import okhttp3.OkHttpClient;

import okhttp3.Request;

import okhttp3.Response;

import okhttp3.logging.HttpLoggingInterceptor;

import retrofit2.Retrofit;

import retrofit2.converter.gson.GsonConverterFactory;

Answer 2

You have to use builder if you want to create OkHttp(3)Client object.

Try change this:

private static OkHttpClient defaultHttpClient = new OkHttpClient();

To something like this:

  OkHttpClient defaultHttpClient = new OkHttpClient.Builder()
       .addInterceptor(
           new Interceptor() {
             @Override
             public Response intercept(Interceptor.Chain chain) throws IOException {
                   Request request = chain.request().newBuilder()
                   .addHeader("Accept", "Application/JSON").build();
               return chain.proceed(request);
              }
           }).build();